公开(公告)号：US12216304B2

公开(公告)日：2025-02-04

申请号：US18338521

申请日：2023-06-21

Applicant: Japan Display Inc.

Inventor： Shinichi Komura ,  Koichi Okuda ,  Ken Onoda ,  Hiroaki Kijima

IPC: F21V8/00

Abstract: According to an embodiment, an illumination device includes a light guide having a first plane, a second plane opposed to the first plane and substantially parallel to the first plane, and a tilted plane opposed to the first plane and tilted to the first plane, the tilted plane and the second plane being arranged in a first direction, and a light emitting device including a first light emitting part, a second light emitting part, and a third light emitting part which are located directly below the tilted plane, arranged in the first direction, and configured to emit light having wavelengths different from each other.

公开(公告)号：US12142231B2

公开(公告)日：2024-11-12

申请号：US18377927

申请日：2023-10-09

Applicant: Japan Display Inc.

Inventor： Shinichi Komura ,  Toshiharu Matsushima

IPC: G09G3/34 ,  G06F3/01 ,  G09G3/36

Abstract: According to an aspect, a display device includes: a display panel having a display region in which pixel rows are arranged in a second direction; a scanning circuit configured to supply a drive signal to scan the pixel rows; a light source configured to emit light toward the display panel; and a light source control circuit configured to control light emission timing of the light source. The display region is divided into regions in the second direction and includes a first region including two or more pixel rows consecutively arranged in the second direction, and a second region except for the first region. The scanning circuit sequentially scans the pixel rows in the first region, and simultaneously scans two or more pixel rows consecutively arranged in the second direction in the second region.

公开(公告)号：US11536885B2

公开(公告)日：2022-12-27

申请号：US17450479

申请日：2021-10-11

Applicant: Japan Display Inc.

Inventor： Shinichi Komura ,  Junji Kobashi ,  Koichi Okuda ,  Ken Onoda ,  Hiroaki Kijima

IPC: G02B27/01 ,  G02F1/1335 ,  G02F1/13363 ,  G02B5/30 ,  G02B30/34

Abstract: According to one embodiment, a display device includes a display panel configured to emit display light of linearly polarized light, a first semi-transparent element transmitting first circularly polarized light and reflecting second circularly polarized light, a first retardation film, a second semi-transparent element reflecting the first circularly polarized light and transmitting the second circularly polarized light, a second retardation film having a refractive anisotropy in which refractive indexes of directions orthogonal to each other in a plane are substantially equivalent to each other and a refractive index in a normal is different from a refractive index in a plane, and a first element having a lens action of condensing the second circularly polarized light.

公开(公告)号：US11500211B2

公开(公告)日：2022-11-15

申请号：US17450482

申请日：2021-10-11

Applicant: Japan Display Inc.

Inventor： Shinichi Komura ,  Koichi Okuda ,  Ken Onoda ,  Hiroaki Kijima

IPC: G02B27/01 ,  G02F1/1335 ,  G02F1/13363

Abstract: According to one embodiment, a display device including a display panel configured to emit display light of linear polarization, a first retardation plate, a second retardation plate, a reflective polarizer configured to pass first linear polarized light, and to reflect second linear polarized light, a transflective layer including a concave surface opposed to the second retardation plate, and a transparent solid with almost zero refractive anisotropy, wherein the first retardation plate and the second retardation plate are a quarter-wave plate, and the transparent solid includes a first surface shaped convex to be opposed to the concave surface, and a second surface opposed to the reflective polarizer.

公开(公告)号：US11221521B2

公开(公告)日：2022-01-11

申请号：US16817739

申请日：2020-03-13

Applicant: Japan Display Inc.

Inventor： Shigesumi Araki ,  Toshiharu Matsushima ,  Shinichi Komura

IPC: G02F1/13363 ,  G02F1/1335 ,  G02F1/1339 ,  G02F1/1343

Abstract: Provided is a display device including an array substrate, a pixel, a dimming element, and a counter substrate. The pixel is located over the array substrate and includes a first electrode, a second electrode, and a liquid crystal layer over the first electrode and the second electrode. The dimming element is located over the array substrate and includes a third electrode, the liquid crystal layer over the third electrode, and a fourth electrode over the liquid crystal layer. The counter substrate is located over the fourth electrode.

公开(公告)号：US11016356B2

公开(公告)日：2021-05-25

申请号：US17012403

申请日：2020-09-04

Applicant: Japan Display Inc.

Inventor： Shinichi Komura ,  Youichi Asakawa

IPC: G02F1/139 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/13357 ,  G02F1/13363

Abstract: According to one embodiment, a display device comprises a color filter layer, an illumination device and a selection layer. The illumination device illuminates the color filter layer with mixed light including first and second components. The color filter layer includes first and second filters. The selection layer includes a phase element layer including first and second phase elements, and first and second polarizers. The first phase element changes a polarization state of the mixed color light such that the first component is transmitted through the second polarizer. The second phase element changes a polarization state of the mixed color light such that the second component is transmitted through the second polarizer.

公开(公告)号：US20200301188A1

公开(公告)日：2020-09-24

申请号：US16817739

申请日：2020-03-13

Applicant: Japan Display Inc.

Inventor： Shigesumi Araki ,  Toshiharu Matsushima ,  Shinichi Komura

IPC: G02F1/13363 ,  G02F1/1335 ,  G02F1/1339 ,  G02F1/1343

Abstract: Provided is a display device including an array substrate, a pixel, a dimming element, and a counter substrate. The pixel is located over the array substrate and includes a first electrode, a second electrode, and a liquid crystal layer over the first electrode and the second electrode. The dimming element is located over the array substrate and includes a third electrode, the liquid crystal layer over the third electrode, and a fourth electrode over the liquid crystal layer. The counter substrate is located over the fourth electrode.

公开(公告)号：US10459303B2

公开(公告)日：2019-10-29

申请号：US15693960

申请日：2017-09-01

Applicant: Japan Display Inc.

Inventor： Shinichiro Oka ,  Shinichi Komura ,  Yosuke Hyodo ,  Lu Jin

IPC: G02F1/1368 ,  F21V8/00 ,  G02F1/1333 ,  G02F1/1345 ,  G02F1/1362 ,  H01L27/12

Abstract: A thin display device with a less bezel portion is provided. The display device includes: a first substrate with flexibility, the first substrate having a display section including a first pixel; a second substrate with flexibility; and a sealant which bonds the first substrate and the second substrate together. A curved part is provided inside the sealant in a planar view. When a surface of the first substrate opposing the second substrate is taken as a front surface and a surface opposite to the front surface is taken as a back surface, the back surface inside the curved part and the back surface outside the curved part are overlapped each other in a planar view. The display section is provided in the curved part.

公开(公告)号：US09842555B2

公开(公告)日：2017-12-12

申请号：US15204676

申请日：2016-07-07

Applicant: Japan Display Inc.

Inventor： Daiichi Suzuki ,  Yukio Tanaka ,  Kenji Nakao ,  Kazuhiro Nishiyama ,  Shinichi Komura ,  Shinichiro Oka ,  Mika Oiwa

IPC: G09G3/36 ,  G02F1/1337 ,  G02F1/1368 ,  G02F1/1343

CPC classification number: G09G3/3648 ,  G02F1/1337 ,  G02F1/134363 ,  G02F1/1368 ,  G02F2001/134372 ,  G09G3/3614 ,  G09G2300/0426 ,  G09G2320/0247 ,  G09G2330/021 ,  G09G2340/0435

Abstract: According to one embodiment, a lateral electric-field type of liquid crystal display device includes a display panel and a controller, wherein a frame frequency falls within a range of 1 Hz to 10 Hz, an off-leak current of each of the TFTs has a value of 1×10−15 A or less, a resistivity of a liquid crystal and a resistivity of an alignment film both fall within one of a first range and a second range, the first range being 1×1013 to 5×1013 Ω·cm, the second range being 5×1013 to 5×1014 Ω·cm, and a relationship of “R1× C1≈R2×C2” is satisfied, where R1 is a resistance and C1 is a capacity with respect to each pixel, R2 is a resistance and C2 is a capacity with respect to each pixel.

公开(公告)号：US12300191B2

公开(公告)日：2025-05-13

申请号：US18414631

申请日：2024-01-17

Applicant: Japan Display Inc.

Inventor： Koichi Okuda ,  Shinichi Komura

IPC: G09G3/36

Abstract: A display device includes a display panel, an optical element configured to collect light emitted from the display panel to user's eyes, and a drive circuit configured to drive the display panel based on an image signal having information on an image. The drive circuit generates a corrected image obtained by applying correction to the image to cause distortion, based on distortion caused by the optical element, and displays the corrected image on the display panel.